Cough syrups are cocktails that can contain a variety of different medications.
Antitussives, such as dextromethorphan, suppresses coughing by blocking the body’s cough reflex
Syrups like glycerol coat the throat and reduce irritation
Antihistamines like benadryl open up airways
Decongestants like Sudafed reduce swelling and make it easier to breath and remove mucus
and Pain medication like Acetaminophen (Tylenol) make you more comfortable
This is one of the reasons cough medicine can actually be dangerous because it can lead to accidental overdoses. People don’t read the label and take a cough syrup, tylenol sinus, and perhaps other medications that all contain acetaminophen at the same time which can cause liver damage in large quantities.
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